Katsuaki Murata

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Kumamoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power supply device, fixing device and image forming apparatus
- Patent number 7,986,894
- Issue date Jul 26, 2011
- Ricoh Company, Ltd.
- Tomofumi Yamashita
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Ferroresonant constant AC voltage regulator
- Patent number 4,642,549
- Issue date Feb 10, 1987
- Nishimu Electronics Industries Co., Ltd.
- Kosuke Harada
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power conversion device for solar cell
- Patent number 4,626,983
- Issue date Dec 2, 1986
- Nishimu Electronics Industries Co., Ltd.
- Kosuke Harada
- G05 - CONTROLLING REGULATING
Information Patent Grant
Uninterruptible ac power supply
- Patent number 4,556,802
- Issue date Dec 3, 1985
- Nishimu Electronics Industries, Co., Ltd.
- Kosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High frequency power supply device
- Patent number 4,553,199
- Issue date Nov 12, 1985
- Tokyo Shibaura Denki Kabushiki Kaisha
- Koosuke Harada
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Power supply device, fixing device and image forming apparatus
- Publication number 20090067867
- Publication date Mar 12, 2009
- Ricoh Company, Ltd.
- Tomofumi Yamashita
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR